<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>demo</title>
    <style>
        body,html { padding: 0; margin: 0; }
    </style>
</head>
<body>

<div id="app">
    <!--路由显示区域-->
    <router-view v-if="isRouterAlive"></router-view>
</div>
</body>
</html>
